ScrollMagic - The jQuery plugin for magical scroll interactions.
Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Lax.js - Create beautiful & smooth animations when you scroll
Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
ScrollReveal - ScrollReveal is a tool to add scroll animations for web and mobile browsers.
Google Forms - Simple web forms from Google.